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The reconsideration of the active constituent azinphos-methyl, registrations of products containing azinphos-methyl and approvals of their associated labels PRELIMINARY REVIEW FINDINGS Volume 1: Review Summary OCTOBER 2006 Canberra Australia Azinphos-methyl review – Preliminary Review Findings © Australian Pesticides & Veterinary Medicines Authority 2006 This work is copyright. Apart from any use permitted under the Copyright Act 1968, no part may be reproduced without permission from the Australian Pesticides & Veterinary Medicines Authority. The Australian Pesticides & Veterinary Medicines Authority publishes this preliminary review findings report for the active constituent azinphos-methyl and products containing azinphos- methyl. For further information about this review or the Pesticides Review Program, contact: Manager Chemical Review Australian Pesticides & Veterinary Medicines Authority PO Box E 240 KINGSTON ACT 2604 Australia Telephone: 61 2 6272 3213 Facsimile: 61 2 6272 3218 Email: [email protected] APVMA web site: http://www.apvma.gov.au i Azinphos-methyl review – Preliminary Review Findings FOREWORD The Australian Pesticides & Veterinary Medicines Authority (APVMA) is an independent statutory authority with responsibility for the regulation of agricultural and veterinary chemicals in Australia. Its statutory powers are provided in the Agvet Codes scheduled to the Agricultural and Veterinary Chemicals Code Act 1994. The APVMA can reconsider the approval of an active constituent, the registration of a chemical product or the approval of a label for a container for a chemical product at any time. This is outlined in Part 2, Division 4 of the Agvet Codes. The basis for the current reconsideration is whether the APVMA is satisfied that continued use of the active constituent azinphos-methyl and products containing azinphos-methyl in accordance with the instructions for their use: • would not be an undue hazard to the safety of people exposed to it during its handling or people using anything containing its residues; and • would not be likely to have an effect that is harmful to human beings; and • would not be likely to have an unintended effect that is harmful to animals, plants or things or to the environment; and • would not unduly prejudice trade or commerce between Australia and places outside Australia. The APVMA also considered whether product labels carry adequate instructions and warning statements. A reconsideration may be initiated when new research or evidence has raised concerns about the use or safety of a particular chemical, a product or its label. The reconsideration process includes a call for information from a variety of sources, a review of that information and, following public consultation, a decision about the future use of the chemical or product. In undertaking reconsiderations (hereafter referred to as reviews), the APVMA works in close cooperation with advisory agencies including the Office of Chemical Safety, the Department of the Environment and Heritage, and State departments of agriculture as well as other expert advisers as appropriate. The APVMA has a policy of encouraging openness and transparency in its activities and community involvement in decision-making. The publication of review reports is a part of that process. The APVMA also makes these reports available to the regulatory agencies of other countries as part of bilateral agreements. The APVMA recommends that countries receiving these reports will not utilise them for registration purposes unless they are also provided with the raw data from the relevant applicant. This document sets out the preliminary review findings relating to the active constituent azinphos-methyl and products containing azinphos-methyl that have been nominated for review by the APVMA. The preliminary review findings and proposed recommendations are based on information collected from a variety of sources. The information and technical data ii Azinphos-methyl review – Preliminary Review Findings required by the APVMA to review the safety of both new and existing chemical products must be derived according to accepted scientific principles, as must the methods of assessment undertaken. The review summary (Volume 1) and the technical reports (Volume 2) for all registrations and approvals for azinphos-methyl are available from the APVMA web site: http://www.apvma.gov.au/chemrev/chemrev.html. COMMENT FROM THE PUBLIC IS INVITED This Preliminary Review Findings report: • outlines the APVMA review process • informs interested parties how to respond to the review • summarises the technical assessments from the reviewing agencies • outlines the proposed regulatory action to be taken in relation to the continued approval and registration of azinphos-methyl. The APVMA invites persons and organisations to submit their comments and suggestions on PRF report directly to the APVMA. Your comments will assist the APVMA in preparing the Review Findings Report, which is the second report in the three-stage review reporting process. The final report is the Final Review Report and Regulatory Decision. PREPARING YOUR COMMENTS FOR SUBMISSION You may agree or disagree with or comment on as many elements of the Preliminary Review Findings as you wish. When making your comments: • clearly identify the issue and clearly state your point of view • give reasons for your comments supporting them, if possible, with relevant information and indicate the source of the information you have used • suggest to the APVMA any alternative solution you may have for the issue. Please try to structure your comments in point form referring each point to the relevant section in the Preliminary Review Findings. This will help the APVMA assemble and analyse all of the comments it receives. Finally please tell us whether the APVMA can quote your comments in part or in full. THE CLOSING DATE FOR SUBMISSIONS IS 15 DECEMBER 2006 Your comments should be mailed to: Evaluator, Azinphos-methyl Review APVMA PO Box E240 KINGSTON ACT 2604 or faxed to: (02) 6272 3218 or emailed to: [email protected] iii Azinphos-methyl review – Preliminary Review Findings ABBREVIATIONS AND ACRONYMS μg microgram ADI acceptable daily intake (for humans) AC Active constituent ai active ingredient APVMA Australian Pesticides & Veterinary Medicines Authority ARfD Acute Reference Dose CDA Controlled Droplet Applicators ChE cholinesterase CODEX FAO/WHO Codex Alimentarius Commission CRP Chemistry and Residues Program DEF S, S, S-tributylphosphorotrithioate DEH Department of Environment and Heritage (previously Environment Australia) DFR dislodgeable foliar residue DNA deoxyribonucleic acid DoC Declaration of Composition EC emulsifiable concentrate EC50 concentration at which 50% of the test population are affected ECG electrocardiogram EPN O-ethyl O-4-nitrophenyl phenylphosphonothioate FAISD Handbook of First Aid Instructions, Safety Directions, Warning Statements and General Safety Precautions for Agricultural and Veterinary Chemicals FAO Food and Agriculture Organisation FSANZ Food Standards Australia and New Zealand GAP Good Agricultural Practice h hour ha hectare in vitro outside the living body and in an artificial environment in vivo inside the living body of a plant or animal IPM integrated pest management JMPR Joint FAO/WHO Meeting on Pesticide Residues kg kilogram L litre LC50 concentration that kills 50% of the test population of organisms LD50 dosage of chemical that kills 50% of the test population of organisms MATC maximum acceptable toxicant concentration mg milligram mg/kg bw/day mg/kg bodyweight/day MIA Murrumbidgee Irrigation Area MOE margin of exposure MRL maximum residue level NDPSC National Drugs and Poisons Schedule Committee NEDI National Estimated Dietary Intake NESTI National Estimated Short-Term Intake NHMRC National Health and Medical Research Council NOEL no observable effect level OCS Office of Chemical Safety OECD Organisation for Economic Co-operation and Development OHS Occupational health and Safety iv Azinphos-methyl review – Preliminary Review Findings OP organophosphate pesticide PACC Pesticides and Agricultural Chemicals Committee PHED Pesticides Handlers Exposure Database ppb parts per billion PPE personal protective equipment ppm parts per million PRF Preliminary Review Findings report REI re-entry interval SC suspension concentrate SUSDP Standard for the Uniform Scheduling of Drugs and Poisons US EPA United States Environment Protection Agency USGS United States Geological Survey UV Ultraviolet WHP withholding period WP Wettable Powder v Azinphos-methyl review – Preliminary Review Findings TABLE OF CONTENTS FOREWORD.............................................................................................................................II ABBREVIATIONS AND ACRONYMS ................................................................................IV TABLE OF CONTENTS.........................................................................................................VI EXECUTIVE SUMMARY...................................................................................................VIII INTRODUCTION.......................................................................................................................VIII ACTIVE CONSTITUENT ...........................................................................................................VIII TOXICOLOGICAL ASSESSMENT...............................................................................................VIII OCCUPATIONAL

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